You'll have to 'wedge' your way through the sides of the case. Like how Alex said, there are 4 tabs in the corners which can be unlatched by using something thin like a card or a flat head screwdriver.

Thanks, guys! Got it. I couldn't get the 2 screws directly on the switch plate to grab in their respective holes though, but I think the rest of the case holds it securely enough to where there's no movement at all.

It's almost like they got some shit in there when they anodized it or something. Maybe they're not even tapped, I dunno. Whatever, only the severely OCD need to worry. The empty screw hole isn't visible.